i have a 95 del sol s with a d-15 in it and i'm swapping to a jdm d-15 motor.... all the sensors are swapped from the the other motor. the new motor idles crazy.. it bounces from 700 rpm to 3500 rpm back and forth. new timing belt no idea whats wrong. if anyone lives in the tampa, fl area and wants to come to zephyrhills to fix it i will pay $100 to fix it. call 813-598-2481 and ask for chris. if anyone has any ideas they want to email them to me that would be great too.. matrixdragon001@aol.com.. thanks

 

your IAC (idle air controller) on top of your manifold is fubar.. use the IAC supplied by the original engine..

i dont know why you swaped most of the sensors.. all the jdm sensor work just fine with our USDM ecu's .. just swap the ones that are broken.

also i would to come fix it.. pay for my plane trip plus a 100$ and you got yourself a deal!

 

did you check Your distrubiator ! if is in place righ

 

try this link for cleaning your fitv

https://honda-tech.com/zerothread?id=1564019

 

my gsr was doing the same thing... turns out it was just the IAC also.